声速的

Through ground test and hypersonic flow research, he made great progress in air-breathing hypersonic technology.

通过地面试验和高超声速非平衡流的研究，取得了再入突防气动物理的重要进展。

This paper investigates the effects of high temperature on ultrasonic velocity, refraction angle of inclined probe, ultrasonic attenuation, emitting strength of ultrasonic probe and defect detectable ratio, and provides practical methods of high temperature ultrasonic inspection for vessels and equipment, as well as concrete inspection procedure and key operational points.

文章通过研究高温对超声波声速、斜探头折射角、超声波衰减、探头发射超声波强度以及缺陷检出率的影响，提出了对容器设备进行高温超声波检测的方法、具体检测步骤和操作要点等。

The concept of compressible fluid flow is usually employed for gases moving at high velocity, unlike the concept of incompressible flow, which is used for liquids and gases moving at a speeds well below sonic velocity.

的概念，可压缩流体流动通常是受雇为气体运动在高速度，不同的概念，不可压缩流动，这是用于液体和气体运动在速度远低于声速。

The improved experiment device of interference of sound wave can feel the interference countervail and strengthening of sound in ordinary lab, and measure the sound velocity.

本文给出了改进声波干涉实验装置的具体方案，该改进装置可在普通实验室内感受声音的干涉相消和干涉加强现象，并能测定声速和频率。

The methodusing cross correlation analysis and FFT technique is introduced to analyze digitized pulse echosignal in ultrasonic measurement.

与此同时，针对影响声弹性测量结果的超声信号分析与处理技术，提出了基于相关分析和FFT技术的声速测定理论与方法。

The sound velocity of enstatite is measured with the optical analyzing method at the pressure range 40-140Gpa.

在40-140GPa冲击压力范围内，用光分析技术测量了顽火辉石高压相的五个压力点上的声速值。

Based on thermodynamics,the relationship between the ideal-gas heat capacity at constant pressure and the speed of sound in the gaseous phase was analyzed.

在本套实验系统上测得了一批高精度的新环保制冷剂的气相声速数据，并可进一步确定其理想气体比定压热容。

Systematic study is carried out to the main factors that influence the levitation stability during containerless processing of materials. The effect of the medium density r f , sound speed c , gravitational acceleration g , and resonant states Hm on the acoustic containerless processing is revealed.

对材料声悬浮无容器处理过程中，影响悬浮稳定性的主要因素进行了深入研究，揭示了媒质密度 r f ，声速 c ，重力加速度 g 和声场谐振状态 Hm 对声悬浮过程的影响机制。

The design and computation of the hypersonic nozzle have scientific and practical value to solve these problems.

而高超声速风洞喷管的设计和计算则对解决这一类问题具有重要的科学意义和实用价值。

The results show that the present design of TPS can meet the requirements of the hypersonic aircraft.

整个数值计算过程对高超声速飞行器热结构的设计与分析提供了一些有益的参考。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。